Here’s a simple comparison between List.of() and Collections.unmodifiableList()
| Key Differences | List.of() | Collections.unmodifiableList() |
|---|---|---|
| Java Version | Java 9+ | Java 1.2+ |
| Backed by the original list | ❌ No | ✅ Yes |
| Allows null elements | ❌ No | ✅ Yes (if original list has them) |
| Reflects changes in the original | ❌ No | ✅ Yes |
| Immutable or Unmodifiable | ✅ Truly immutable | ✅ Unmodifiable view (not truly immutable) |